LIMITED POWER OF ATTORNEY FOR
RULE 144 AND SECTION 16 REPORTING OBLIGATIONS


	Know all by these presents, that the undersigned's hereby makes, constitutes
and appoints Brian E. Anderson as the undersigned's true and lawful
attorney-in-fact, with full power and authority as hereinafter described on
behalf of and in the name, place and stead of the undersigned to:

(1)	prepare, execute, acknowledge, deliver and file Forms 144, ID, 3, 4, and 5
(including any amendments thereto) with respect to the securities of Belden
Inc., a Delaware corporation (the "Company"), with the United States Securities
and Exchange Commission, any national securities exchanges and the Company, as
considered necessary or advisable under Rule 144 of the Securities Act of 1933,
and the rules and regulations promulgated thereunder, as amended from time to
time (the
"Securities Act"), or Section 16(a) of the Securities Exchange Act of 1934 and
the rules and regulations promulgated thereunder, as amended from time to time
(the "Exchange Act");

(2)	seek or obtain, as the undersigned's representative and on the undersigned's
behalf, information on transactions in the Company's securities from any third
party, including brokers, employee benefit plan administrators and trustees, and
the undersigned hereby authorizes any such person to release any such
information to the undersigned and approves and ratifies any such release of
information; and

(3)	perform any and all other acts which in the discretion of such
attorney-in-fact are necessary or desirable for and on behalf of the undersigned
in connection with the foregoing.

The undersigned acknowledges that:

(1)	this Power of Attorney authorizes, but does not require, such
attorney-in-fact to act in their discretion on information provided to such
attorney-in-fact without independent verification of such information;

(2)	any documents prepared and/or executed by such attorney-in-fact on behalf of
the undersigned pursuant to this Power of Attorney will be in such form and will
contain such information and disclosure as such attorney-in-fact, in his or her
discretion, deems necessary or desirable;

(3)     neither the Company nor such attorney-in-fact assumes (i) any liability
for the undersigned's responsibility to comply with the requirement of the
Securities Act or the Exchange Act, (ii) any liability of the undersigned for
any failure to comply with such requirements, or (iii) any obligation or
liability of the undersigned for profit disgorgement under Section 16(b) of the
Exchange Act; and

(4)     this Power of Attorney does not relieve the undersigned from
responsibility for compliance with the undersigned's obligations under the
Securities Act or the Exchange Act, including without limitation the reporting
requirements under Section 16 of the Exchange Act.

	The undersigned hereby gives and grants the foregoing attorney-in-fact full
power and authority to do and perform all and every act and thing whatsoever
requisite, necessary or appropriate to be done in and about the foregoing
matters as fully to all intents and purposes as the undersigned might or could
do if present, hereby ratifying all that such attorney-in-fact of, for and on
behalf of the undersigned, shall lawfully do or cause to be done by virtue of
this Limited Power of Attorney.

	This Power of Attorney shall remain in full force and effect until revoked by
the undersigned in a signed writing delivered to such attorney-in-fact.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 15th day of February, 2023.

                                         /s/ Brian Lieser
                                         Signature

                                         Brian Lieser
                                         Print Name